Ok so I have an external fuge I setup consisting of 30 gal breeder,and I had a spare boostled mu135 led fixture im using as the light,should grow my macros fast. My question is this the MT is 120 gals,30 gal sump,30 gal fuge, is 200 gph enough flow into the fuge to properly do it's job?

Many schools of thought on the subject. I prefer to go real slow – I grow a variety of macro’s, many of which do not want to be blasted by flow. So I perk 10% of my total volume through the refugium per hour, no more.

Many people like to grow cheato – this thrives with a higher rate of flow. But again, just my opinion – slower works the best. With a slow flow the refugium is truly a refuge, a safe haven for pods. This will keep your tank well feed. What Macro’s did you have in mind?

As for your 200 GPH, I’d say this is middle of the road and should work fine. Best advice would be to tell you to tinker with it. But you need to wait a month or two before you increase or decrease the flow – you will see grow change and perhaps your water parameters improve (if you are installing this for a specific issue).

I have a question,if all the water in the DT and in the sump and fuge have the same amount of nutrients and this macro and cheato have this water surrounding it,how is the water not processed? It's not like the algae has to absorb all the nutrients before they are pumped back up to the main tank or that the water in the sump and etc. is never renewed.The algae absorbs a little at a time all day long. Please let me know where I'm wrong.

Useful Searches

About 3Reef

Reef aquariums made easy with 3reef aquarium forums - one of the oldest and friendliest aquarium forums online. 3reef came online in 1996 as 'Three Steps To A Reef Aquarium.' This title was created as an attempt to overcome the common fears associated with keeping a reef aquarium, especially at that time. 3reef still retains its roots and remains a friendly forum for new people interested in aquariums and veteran hobbyist alike.